#!/usr/bin/env python
# -*- coding:utf-8 -*-
# @FileName  :NumberSum_02.py
# @Time      :2020/6/22 9:29
# @Author    :Administrator

a = float(input("第一个数字："))
b = float(input("第二个数字: "))

numberSum = a + b
print('数字%.2f+%.2f=%.2f:' % (a, b, numberSum))
print('数字{0}和{1}相加结果为:{2}'.format(a, b, numberSum))
